Abstract: E1.00092 : Simulating Thermopower in Mott-Hubbard Materials

Authors:

Stanimir Kondov(University of Illinois)

William McGehee(University of Illinois)

Joshua Zirbel(University of Illinois)

Brian DeMarco(University of Illinois)

Collaboration:

DeMarco Lab

We report progress on a new project to simulate and understand
thermopower in Mott-Hubbard materials. Potassium-40 atoms that
have been cooled to degeneracy and loaded into an optical lattice
serve as the physical analog to these poorly understood,
highly-correlated systems. A temperature gradient across the
atomic cloud will induce mass flow, which can be directly related
to an equivalent thermopower of charged particles. The transport
properties of the cloud, which will vary with the dimensionality
and strength of the lattice, will be measured using
time-of-flight imaging and employed to determine the impact of
Hubbard parameters, disorder, and lattice geometry on thermopower.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.DAMOP.E1.92